Mario and Luigi are Brothers is a fan fiction comic based on the characters from the famous Super Mario Bros. universe. Niall Breen explores personal and emotional aspects of the characters making them relatable to the reader. Apart from his hand drawn comic pages, the artist uses visual assets from the original 1985 video game to compose full colour digital images that serve as quiet contemplative moments throughout the comic. The juxtaposition of the characters' original universe and the new world Breen creates for them establishes a continuous connection between them whilst reinforcing their appealing, slightly odd, contrast.

Niall Breen is an Irish cartoonist mostly notorious for his diary comics on instagram which often feature his iconic dog character who's distinctively introspective and big-hearted. Those qualities, however, seem to permeate the rest of the artist's characters as you can definitely see it happening on Mario and Luigi are Brothers.